Combined ground working and soil pulverizing machine



March 7, 1944. BRYANT 2,343,396

COMBINED GROUND WORKING AND SOIL PULVERIZING MACHINE Filed July 4, 1942 5 Sheets-Sheet l Inventor Y5: /Zmes 791055425 017 ywmm March 7, 1944. J. BRYANT 2,343,396

COMBINED GROUND WORKING AND SOIL PULVERIZING MACHINE Filed July 4, 1942 5 Sheets-Sheet 2 m l M a N \n x (I Q Q N N Invenior vfvmes EwsseZ/Bgan? B 2 m 0 3% m March 7, 1944. l]. R. BRYANT COMBINED GROUND WORKING AND SOIL PULVERIZING MACHINE 5 Sheebs-Sheet 3 Filed July 4, 1942 Invenlor March 1944- J. R. BRYANT COMBINED GROUND WORKING AND SOIL PULVERIZING MACHINE Filed July 4, 1942 5 Sheets$heet 4 25 Inventor $7718? March 7, 1944. J. R. BRYANT 2,343,396

COMBINED GROUND WORKING AND SOIL PULVERIZING MACHINE Filed July 4, 1942 5 Sheets-Sheet 5 Inventor Patented Mar. 7, 1944 cormmnn (mourn) wortxma AND son. PULVERIZING MACHINE James Russell Bryant, Oshawa, Ontario. Canada Application July 4, 1942, Serial No. 449,793

2 Claims.

The present invention relates to new and useful improvements in farm implements and has for its primary object .to provide a machine adapted for working the soil and also for breaking up the hard lumps of earth over which the machine is travelling.

An important object of the present invention is to provide a machine of this character equipped with a pair of rotating soil pulverizers disposed transversely of the machine and arranged in overlapping relation for working a strip of ground of a width equal to the entire width of the machine, and providing drive means for the pulverizers extending to a power take-oil from a tractor employed for pulling the machine over the ground.

A further important object of the present invention is to provide a frame for each of the soil pulverizing elements and providing a ball and socket connection for the adjacent edges of the frames to provide for independent movement of the frame while the machine is travelling over uneven surfaces.

F of the frame member 8 and the adjacent ends A still further object is to provide ground wneels for each of the frames embodying means for vertical adjustment thereof to regulate the height of the pulverizing elements with respect to the ground.

An additional object is to provide a machine of this character of simple and practical construction, which is efficient and reliable in performance, relatively inexpensive to manufacture and maintain in operation, and otherwise well adapted for the purposes for which the same is intended.

Other objects and advantages reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming part hereof, wherein like numerals refer to like parts throughout and in which:

Figure 1 is a top plan view.

Figure 2 is a side elevational view.

Figure 3 is a fragmentary rear elevational view.

Figure 4 is a horizontal sectional view through the gear housing of one of the adjustable wheel mountings.

Figure 5 is a vertical sectional view therethrough.

Figure 6 is a vertical sectional view through the gear housing for the master operating wheel .for adjusting the several wheels.

Figure 7 is a transverse sectional view through the gear housing for the master adiust s sear.

Figure 8 is a vertical sectional view therethrough.

Figure 9 is a vertical sectional view through the transmission housing.

Figure 10 is a fragmentary side elevational view with parts in section and showing the splined joint for the drive shaft between the front and rear rotary elements.

Figure 11 is a fragmentary end elevational view of one of the rotary elements, and

Figure 12 is a fragmentary longitudinal sectional view thereof.

Referring now to the drawings in detail, wherein for the purpose of illustration I have dis closed a preferred embodiment of the invention, the numerals Ii and designate a pair of frame members, each including end plates 1 and transversely and longitudinally extending frame members 8 and 9, respectively.

As shown to advantage in Figure 1 of the drawings, the frame member I is disposed in advance thereof are disposed in overlapping relation.

A rotary soil working element II is carried by the frame 5 and includes end plates Ii and intermediate plates ll' connected by slats l2, the end plates being secured on a shaft it having its ends iournaled in the end plates 1 of the frame member. At spaced intervals, the slats l2 are formed with tapered countersinks having grooves l4 therein in which are conformably fittedv the ribbed tapered portions I! of earth working elements l6 having a shank l'l extending through the slats and secured thereto by nuts ll. The ribs and grooves prevent turning of the shanks in the slats. The earth working elements It pro- 2|, the front ends of the beams being connected to a sectional plate 22, the sections of which are hingedly connected along their adjacent longitudinal edges to a plate 22' by balls and sockets 22", the plate 22' being attached to a drawbar 23 which projects forwardly from the machine. The rear end of the drawbar is provided with a plate 24 having sockets in its opposite sides for swivelly receiving balls 2' projecting inwardly from the side edges of plates 21 secured to the respective frame members 2| and II.

Bxured to the frame member fl is a transmission gear housing 20 having a drive shaft It extending forwardly from its front end for operation from a conventional power takeoff of a tractor to which the pulverizing machine is attached. A driven shaft 8| extends from the rear of the housing II, the inner ends of the shafts it and II having a conventional form of transmission gearing 3i and 32 connected therewith to provide a three-speed drive which is controlled by a gear shift lever If.

The driven shaft 3| is provided with a bevel gear I4 engaging a ring gear 3! on the inner end of the drum II, the shaft 3| extending rearwardly from the front frame I and is connected to a splined shaft section 30 having universal joints I1 and I! at its front and rear ends for connection with a shaft section II extending into a ear housing ll secured to the front end of the frame section l. A shaft section'll extends from the gear housing ll and to which a bevel gear 42 is secured for driving a ring gear 43 on the adiaeent end of the drum il.

Secured to each of the end plates I of the respective frame members I and I, is a gear housing 44 having a vertical bore 45 extending therethrough and in which is positioned a vertical screw 40 having a wheel spindle 41 extending laterally at its lower end, the spindle having a wheel ll journaled thereon and the lower end of the bore ll and screw 48 are of square shape in cross-section to prevent turning of the screw.

Threads II are formed on the screw is for enagin the internal threads ll of a gear ll journaled in the housing 44 by bearing assemblies If. The worm gear II is operatively engaged by a worm ll secured on a shaft I4, the shaft 4 being connected by means of a universal joint I! to a forwardly extending shaft II, each of the shafts ll being connected at their front ends to a shaft I! by means of a universal joint II. The shaft l1 projects into a gear housing II which is supported at the front end of the machine on the plate I! and is provided with interengaged gears 80 journaled therein, one of the gears 8| being driven by means of a pinion Ii from a master gear 02 secured on the lower end of a shaft 03 which projects upwardly through the housing I! and is provided at its upper end with a manipulating wheel N.

Inch of the wheels, at the opposite ends or the frames I and I, are provided with one of the vertically adjustable screws 4 operated through the wheel 04 whereby to vertically adiust the wheel and accordingly to raise or lower the frames 5 and I together with the rotating drums II and it respectively mounted thereon.

As more clearly illustrated in Figure 1 of the drawings, the frame members II and 2 i, to which the respective frames I and 8 are attached, are connected to each other adjacent their rear ends by spaced parallel transversely extending frame members I having universal joints II at each end thereof to permit independent verticalmovement of the respective frame members I and I as the machine travels over uneven surfaces of the ground.

Flexible covers '1 and I are mounted at the upper and lower ends of the housing 44 and enclose the respective ends of the vertical screws 48 to permit dirt-from entering the housing.

A conventional form of lubrication system may be provided for the moving parts of the machine and all bearing joints may be sealed from dust and dirt by felt washers and flexible fabric covers. such as shown at H in Fi ure 10.

It is believed the details of construction and manner of use of the device will be readily understood from the foregoing without further detailed explanation.

Having thus described the invention what I claim is:

1. A ground pulverizer comprising a pair of wheel supported frames, said frames extending transversely of the machine, and arranged in overlapping endwise relation with one frame forwardly of the other frame, a toothed pulverizing drum rotatably mounted on each frame, a forwardly extending towing frame connected to each of said first-named frames, said second frames being hingedly connected to each other along a longitudinal center line, spaced parallel transversely extending frame members swivelly connecting the overlappl i end of the front frame member to the towing frame of the rear frame member drive means for the drums including a forwardly extending driven shaft, and means for vertically adjusting the frames on the wheels.

2. A ground pulverizing machine comprising a pair of frames extending transversely of the machine, means swivelly connecting the frames in endwise overlapping relation, a rotary pulverizing element mounted on each frame, drive 

